Hybrid Image Stabilization Camera Body
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera systems face challenges in efficiently correcting image blur caused by vibration, as using only optical or digital image-blur correcting units can result in increased system size and complexity, with insufficient correction leading to degraded images, especially when the type and amplitude of vibration vary.
Innovation Solution
A camera body equipped with a vibration detecting unit, a first image-blur correcting unit, and a second image-blur correcting unit, controlled by a control unit to selectively use either or both units based on detected vibration characteristics, such as continuous or discontinuous motion, angle, or angular acceleration, to optimize image stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only optical image-blur correcting unit is used, then structure becomes complex and outer dimensions increase, but correction effectiveness is insufficient for various vibration types
Solution Approach 1:
The patent combines optical image-blur correcting unit and digital image-blur correcting unit into a hybrid system. The optical unit handles large-angle vibrations through physical lens movement, while the digital unit processes residual blur through image processing algorithms, achieving comprehensive correction without excessive complexity.
Solution Approach 2:
The system dynamically switches between optical and digital correction modes based on detected vibration characteristics. The control unit determines which correction method to apply in real-time, optimizing the balance between correction effectiveness and system complexity for different vibration scenarios.
2Volume of moving object
If only digital image-blur correcting unit is used, then system size can be reduced, but correction area becomes insufficient leading to unnatural correction and image degradation
Solution Approach 1:
The correction function is segmented into two parts: optical correction handles the bulk of blur correction for large vibrations, while digital correction handles residual blur and fine-tuning. This segmentation allows each unit to operate within its optimal performance range, preventing image degradation.
Solution Approach 2:
The control unit acts as an intermediary that coordinates between optical and digital correction units. It processes vibration detection results and selectively activates appropriate correction methods, ensuring seamless transition and preventing unnatural correction artifacts.
3Reliability
If hybrid correction system is used for large degree of image blur, then correction effectiveness improves, but imaging optical system size increases
Solution Approach 1:
The optical correction unit applies partial correction for large vibrations, while the digital correction unit completes the remaining correction. This partial action approach allows the optical system to remain compact while achieving comprehensive correction through coordinated effort with the digital unit.
Data Source
AI summary
A camera body including image-blur correcting units capable of effectively correcting blur in captured images and a camera system including the camera body are provided. The camera body includes a vibration detecting unit configured to detect vibration of the camera body; a first image-blur correcting unit configured to correct blur in captured images, and a second image-blur correcting unit that is different from the first image-blur correcting unit; and a control unit configured to control the first image-blur correcting unit and the second image-blur correcting unit on the basis of detection results produced by the vibration detecting unit.